Dr. Ruben L. Mayer, MD
- Medicare services, 2024
- 6,723
- Medicare patients, 2024
- 675
- Part D claims, 2024
- 10,373
- MIPS score, 2024
- 84
- Hospital affiliations
- 4
- Practice address
- 2720 Sunset Blvd, West Columbia, SC 29169
- Practice phone
- Call (803) 791-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mayer's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Ruben L. Mayer is an internist in West Columbia, South Carolina
Dr. Mayer practices at Lexington Medical Center in West Columbia, South Carolina, part of Lexington Health.
Dr. Mayer's NPI, 1891755039, was assigned on March 23, 2006. Dr. Mayer graduated from University of South Carolina School of Medicine in 1985. Dr. Mayer holds South Carolina license 13804.
- NPI
- 1891755039NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5294873824
- NPI enumeration date
- March 23, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (803) 791-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ruben L. Mayer practices at Lexington Medical Center in West Columbia, South Carolina
Dr. Mayer's primary practice is Lexington Medical Center, at 2720 Sunset Blvd, West Columbia, SC 29169 in Lexington County. The practice phone is (803) 791-2000.
- Lexington Medical Center2720 Sunset Blvd, West Columbia, SC 29169 · Lexington CountyPhone(803) 791-2000
Source: Dmand AI Affiliation Data
Dr. Ruben L. Mayer is affiliated with 12 sites of care and 3 medical groups
Dr. Mayer's primary practice is Lexington Medical Center in West Columbia, South Carolina, part of Lexington Health. Dr. Mayer is also affiliated with Prisma Health Richland Hospital. The medical group on file is Lexington Orthopaedics and Sports Medicine. Dmand AI also links Dr. Mayer to 2 more hospitals, 5 home health agencies, 3 group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ruben L. Mayer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mayer practices, 12 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lexington Medical Center | Available with a free account |
| +11 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Lexington Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Ruben L. Mayer is one of 1,707 internists in South Carolina
Internal medicine is Dr. Mayer's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Mayer is licensed in South Carolina.
Specialties and state licenses
- Internal medicine, South CarolinaPrimary
Internists near Dr. Mayer
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ruben L. Mayer billed Medicare for 6,723 services in 2024
CMS data shows 6,723 Medicare services from Dr. Mayer across 35 procedure codes in 2024, for 675 Medicare patients. Medicare paid $164,339 for them. Every service was in an office.
Dr. Mayer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 4,1912024: 3,8658%
- Office and hospital visits
- 2023: 1,3912024: 1,24211%
- Surgery
- 2023: 1,1332024: 1,0745%
- Other services
- 2023: 3442024: 31010%
- Imaging
- 2023: 1582024: 12223%
- Tests and treatments
- 2023: 1532024: 11028%
Dr. Mayer compared with the South Carolina median for internists, 2024
- Dr. Mayer
- South Carolina median
- Medicare services
- 6,723vs 7409.1 times
- Medicare patients
- 675vs 2582.6 times
- Part D claims
- 9,689vs 33129.3 times
Medians across 1,708 internists in South Carolina with Dmand AI profiles that report each measure.
Dr. Mayer's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Mayer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mayer and other internists in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ruben L. Mayer treated 675 Medicare patients in 2024, average age 76
CMS counts 675 Medicare patients who saw Dr. Mayer in 2024. The largest group is 75 to 84, with 298 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.86, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Mayer's median patient age at 73, with 48% women.
Dr. Mayer's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Mayer's Medicare patients by sex, 2024
- Women34251%
- Men33349%
Chronic conditions among Dr. Mayer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis41%
- Diabetes22%
- Ischemic heart disease22%
- Chronic kidney disease17%
- Atrial fibrillation16%
- Cancer16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mayer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ruben L. Mayer wrote 10,373 Medicare Part D claims in 2024
In 2024, Dr. Mayer wrote 10,373 Medicare Part D claims for 645 patients. 87% of them were for generic drugs. CMS names the drug for 9,689 of them, across 152 drugs with 11 or more claims each, at $856,664 in total drug cost. In 2023, CMS named 10,300 claims across 167 drugs.
Dr. Mayer's Part D claims by kind of drug, 2024
- Generic9,046 claims87%
- Brand-name1,286 claims12%
- Other41 claims0%
Dr. Mayer's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Mayer's Part D claims, 2024
- Opioids2%171 of 10,373 claims
- Antibiotics3%274 of 10,373 claims
- Antipsychotics, patients 65 and over0%25 of 10,373 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 10,3002024: 9,6896%
Drugs named by CMS: 152 in 2024, 167 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Ruben L. Mayer scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Mayer for performance year 2024, reported as part of a group. Dr. Mayer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Mayer's MIPS scores, performance year 2024
- 84of 100Final score
- 68.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 78of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Ruben L. Mayer received $6,853 in industry payments from 2016 to 2025
CMS Open Payments shows 493 general payments to Dr. Mayer from 41 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Eli Lilly and Company paid the most, $828.
General payments to Dr. Mayer by program year, 2016 to 2025
General payments to Dr. Mayer by kind, 2016 to 2025
- Food and beverage$6,838100%
- Education$150%
Companies that paid Dr. Mayer the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ruben L. Mayer graduated from University of South Carolina School of Medicine
Dr. Mayer graduated from University of South Carolina School of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ruben L. Mayer's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Ruben L. Mayer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Ruben L. Mayer's NPI number?
Dr. Ruben L. Mayer's NPI number is 1891755039. It was assigned on March 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ruben L. Mayer?
Dr. Ruben L. Mayer is an internist in West Columbia, South Carolina. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Ruben L. Mayer practice?
Dr. Mayer practices at 2720 Sunset Blvd, West Columbia, SC 29169. Dr. Mayer's primary practice is Lexington Medical Center in West Columbia, South Carolina, part of Lexington Health. Dmand AI also links Dr. Mayer to 2 hospitals, 5 home health agencies, 3 group practices and clinics and 2 medical groups.
What is Dr. Ruben L. Mayer's office phone number?
The practice phone on file for Dr. Mayer is (803) 791-2000.
What is Dr. Ruben L. Mayer's medical license number?
Dr. Mayer holds South Carolina license 13804.
Which hospitals is Dr. Ruben L. Mayer affiliated with?
Dr. Mayer practices at Lexington Medical Center in West Columbia, South Carolina. Dr. Mayer is also affiliated with Prisma Health Richland Hospital. Dmand AI links Dr. Mayer to 2 more hospitals.
What medical group is Dr. Ruben L. Mayer part of?
Dr. Mayer is linked to Lexington Orthopaedics and Sports Medicine. Dmand AI links Dr. Mayer to 2 more medical groups.
Does Dr. Ruben L. Mayer accept Medicare?
Yes. CMS data shows Dr. Mayer billed Medicare for 6,723 services in 2024, and Dr. Mayer accepts Medicare assignment.
What is Dr. Ruben L. Mayer's MIPS score?
Dr. Mayer's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
How many Medicare patients does Dr. Ruben L. Mayer see?
CMS counts 675 Medicare patients who saw Dr. Mayer in 2024, with an average age of 76.
Show 5 more questionsShow fewer questions
What services does Dr. Ruben L. Mayer bill to Medicare?
In 2024, Dr. Mayer's most billed Medicare services were surgery: heart and blood vessels (36415), office visit, established patient (99214) and lab and pathology test (84443).
Where did Dr. Ruben L. Mayer go to medical school?
Dr. Mayer graduated from University of South Carolina School of Medicine in 1985.
What drugs does Dr. Ruben L. Mayer prescribe most?
In 2024 Medicare Part D data, Dr. Mayer's most prescribed drugs by claims were Rosuvastatin Calcium, Levothyroxine Sodium and Zolpidem Tartrate.
Has Dr. Ruben L. Mayer received payments from drug or device companies?
CMS Open Payments shows $6,853 in general payments to Dr. Mayer from 41 companies from 2016 to 2025. The largest total came from Eli Lilly and Company.
How long has Dr. Ruben L. Mayer been practicing?
Dr. Mayer graduated from medical school in 1985, 41 years ago.
Selling to internal medicine practices?
See internists in South Carolina by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card